The healthcare sector experienced a significant uptick, with the XLV ETF climbing 2.12%, largely driven by a strong quarterly earnings report from UnitedHealth Group (UNH). The health insurance giant surpassed analyst expectations for the second quarter and raised its full-year earnings forecast, boosting investor confidence across the industry. Positive news from other major healthcare companies, including a new drug approval for Merck and a significant acquisition by Eli Lilly, also contributed to the sector's strong performance.